baber/WOPTO huggingface dataset:
Patent GB-1222019-A (GB)
Title: Electron gun assembly for colour picture tube
IPC: H01J29/50
Filed: 1968-11-14
Abstract: 1,222,019. Electron guns. HITACHI Ltd. 14 Nov., 1968 [27 Nov., 1967], No. 54047/68. Heading HID. Conductive connection between corresponding electrodes of each gun of a multi-gun assembly is provided by a contact piece secured to one of the electrodes and bearing resiliently on the other electrodes so that the electrode supports need not be welded together. Fig. 3 shows a cross-section of a triple gun of a colour television tube wherein the centre of a strip or wire 9 of cold rolled stainless steel is spot welded to the support 7g of one grid 4g and its ends bear on the supports for the other two grids.
Patent GB-1480927-A (GB)
Title: Method for controlling a one-sided linear motor driven by a static frequency changer
IPC: H02P23/08
Filed: 1974-12-17
Abstract: 1480927 Control of A.C. motors BROWN BOVERI & CIE AG 17 Dec 1974 [19 Dec 1973] 54496/74 Heading H2J To reduce the transverse force acting on a one-sided linear induction motor 2, a static frequency changer 4 supplying the motor is controlled so that, for motor feed voltages below a predetermined maximum value, the slip frequency is maintained substantially constant at a value producing the maximum thrust at a given maximum current, and adjustment of the current and hence the motor thrust is effected by alteration of the feed voltage. The frequency changer 4 is controlled by two signals f 1  and U 1 , the signal f 1  being obtained by summing a constant slip frequency signal f 2  and a signal f v  proportional to the speed of a vehicle driven by the motor along a track, Fig. 1 (not shown), and the signal U 1  being obtained from a signal of motor thrust F s  applied to a function generator 6, which produces a desired current signal W I  for comparison with an actual current signal X I  from a current simulator 9, the difference signal being applied to a controller 8 producing the signal U 1 . During acceleration of the motor, the signal F s  is progressively increased to increase the current and signal f 2  is maintained constant, except for slight variations to take account of slight changes in motor reactance and equivalent resistance with changes of speed. When the maximum voltage U R U S U T  has been reached, the signal f 2  is progressively increased to further increase the current and also cause the transverse force to decrease. For constant speed (zero acceleration) operation, the signal f 2  is reduced to zero and the signal F s  is simultaneously reduced so that the transverse force remains constant and/or does not exceed a maximum permissible value. For regenerative braking, the motor is changed to generator operation under steady state conditions, the signal F s  is reduced and the signal f 2  changed to a value providing maximum braking.
Patent GB-1081379-A (GB)
Title: Process for spinning polyamide filaments
IPC: D01D5/08
Filed: 1965-12-23
Abstract: 1,081,379. Polyamide filaments. E. I. DU PONT DE NEMOURS & CO. Dec. 23, 1965 [Dec. 23, 1964], No. 54620/65. Heading B5B. A process for preparing an undrawn, low birefringence polyamide yarn which comprises extruding a molten, synthetic fibre forming polyamide in the form of filaments, cooling the filaments and contacting the filaments with steam, is characterized by cooling the filaments to a temperature at least 15‹ C. above the forceto-draw transition temperature of the filaments and low enough to at least partially solidify the filaments, contacting the filaments with steam for a period no longer than 0À02 seconds and forwarding the said filaments from the contact with steam. Preferably the filaments are cooled to a temperature between 25‹ and 40‹ C. above the force-to-draw transition temperature of the said filaments, and are contacted with steam, preferably at a temperature above 100‹ C., for a period of from 0À004 seconds to 0À018 seconds, and are then forwarded to wind up. Thus, in Fig. 1, filaments 1 freshly extruded from spinneret 2 pass into cooling chimney 3 where they are contacted by cross flow air 4. Convergence guide 5, adjustable in position to assist control of filament temperature, leads the filament, at the desired temperature out of chimney 3 and into steamer 6 where a cross flow of steam 7 contacts the still hot filaments. The filaments in the undrawn condition are thereafter passed by suitable guides 8 on to a package 9. The duration of steaming may be varied by using steamers of various lengths, and the yarn temperature as it enters the steam zone may be varied by changing the steamer location relative to the spinneret and by converging the filaments with an additional guide at various locations in the chimney (the rate of cooling being decreased by converging the filaments). Yarns so made exhibit a low. orientation in the undrawn state, as indicated by low birefring- ence, and consequently may be drawn at a high draw ratio to produce yarn of the same tenacity and elongation as conventional yarns prepared at a lower draw ratio. Hence the undrawn yarn denier may be increased without affecting the final yarn denier and the productivity of the spinning unit is thereby increased. Yarns so made are also found to dye more deeply under the same conditions than do conventionally processed yarns. Examples are given.
Patent GB-1200149-A (GB)
Title: Apparatus for sealing joint spaces
IPC: E01C23/09
Filed: 1968-11-20
Abstract: 1,200,149. Inserting expansion joint strips. W. A. GRACE & CO. 20 Nov., 1968 [2 April, 1968], No. 55157/6S. Heading E1G. A machine for inserting preformed sealing strips in joints in concrete structures comprises an axle 11, support wheels 24 and a pressure wheel 30 of slightly greater diameter mounted thereon, the sealing strip being guided towards the pressure wheel and transversely compressed by vertically directed rollers 30 mounted in converging side compressor members 14, 15. The distance between the compressor members which have a hole through which the axle passes and are supported from a yoke 13 by bolts 17, is adjustable. Small support rollers 19 are provided at the front of members 14, 15. The pressure wheel 30 may be driven by split clamps tighted about a sleeve on which it rotates and connected to the wheels 24. The pressure wheel may have a smooth surface, in which case it must be narrower than the joint to be sealed.
Patent GB-1086373-A (GB)
Title: Improvements in or relating to junction or conduit boxes or the like
IPC: H02G3/14
Filed: 1965-12-30
Abstract: 1,086,373. Conduit boxes. L. SCHMITT. Dec. 30, 1965 [Jan. 19, 1965; Nov. 3, 1965], No. 55268/65. Headings H2B and H2E. The walls of a conduit box have a number of curved bores 26-29 which accommodate U-shaped lugs 36-39 of a detachable cover 15, thus initially allowing the cover a limited rotation until it is fixed permanently by screws (44), Fig. 3 (not shown), which pass through holes 40-43 in the cover, and grip both sides of the bores and the arms of the lugs. In a modification, Fig. 7 (not shown), a temporary cover (160) having tapering pins (165-168) may be attached during a fitting operation of the box, the cover (160) being originally held for storage in recesses (161-164) at the base of the box. In a further modification. Fig. 10 (not shown), the cover may be held by screws engaging in a circular groove (53) of a cylindrical box (49).
Patent GB-1346622-A (GB)
IPC: D07B3/04
Filed: 1971-11-30
Abstract: 1346622 Two-stage stranding INDUSTRIE PIRELLI SpA 30 Nov 1971 [4 Dec 1970] 55450/71 Heading D1T A plurality of wires are wound in parallel onto each of a number of supply spools 1, 2, 3 which are mounted in swingable cradles in a "double-twisting" machine 4. The wires from each spool are twisted together into strands at bushes 1b, 2b, 3b, and the resultant strands are drawn as a bunch 13 through a bush 12 where they are twisted together in the same sense as the component wires. A false-twisting device 15 temporarily imparts additional twist to eliminate any tendency to untwist. Devices 1a, etc. may be used to prevent running back of the basic twist.
Patent GB-1480600-A (GB)
Title: Apparatus for cleaning rotary printing screens
IPC: B41F35/00
Filed: 1974-12-24
Abstract: 1480600 Cleaning printing screens P ZIMMER 24 Dec 1974 [28 Dec 1973] 55802/74 Heading B6C Cleaning apparatus for a rotary printing screen 1 comprises a roller 10 having a surface of compact, unexpanded soft rubber, a spray tube 14 for rinsing water and a squeeze roller 16 together with receiving trough 17, the whole device being pivotable away from the screen on common support 20. The roller 10 is driven in the same sense of rotation as screen 1 by its own servomotor (21), Fig. 2 (not shown) or direct from the screen drive Fig. 4 (not shown). The invention is particularly applicable to multi-unit machines where a screen may pick up ink from the web of material 4 printed at a previous station; thus, the cleaning device may operate thoughout the printing process. In a preferred arrangement Fig. 3 (not shown), the cleaning devices are provided only on the first and last units of a multi-cylinder machine.
Patent GB-1451929-A (GB)
Title: Storage equipment provided with electrically-earthed conducting  protrusions
IPC: H05F3/02
Filed: 1973-12-03
Abstract: 1451929 Storage equipment for inflammables SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 3 Dec 1973 [9 March 1973] 55935/73 Heading A5A Storage equipment 1 e.g. tanks or vessels comprises storage space provided internally with electrically conducting protrusions 3 adapted to lower the electrostatic space charge within the storage space, the protrusions having curved surfaces and/or ends with a radius of curvature of less than 4 mm. The protrusions may be bars with short pointed wires or manilla rope sections.
Patent GB-1366319-A (GB)
Title: Sa 8-amino-theohylline derivatives process for their preparation and therapeutic compositon containing same
IPC: C07D473/08
Filed: 1971-12-03
Abstract: 1366319 8-Amino-theophylline derivatives LABORATOIRE LE BRUN SA 3 Dec 1971 [7 Dec 1970] 56213/71 Heading C2C Novel compounds of the Formula I wherein R is hydrogen, a C 1-6  alkyl, a C 1-6  hydroxyalkyl, an alkoxyalkyl, a benzyl optionally substituted with at least one alkyl, alkoxy, nitro, amino or halogen, a 3,4-methylene dioxybenzyl or a (CH 2 ) n OCOR 2 ; X is R 1  or -COR 2 , R 1  is C 1-6  alkyl or hydroxyalkyl, or phenyl, R 2  is hydrogen, C 1-6  alkyl or phenyl and n is 2 to 6 and metal and acid additional salts, may be prepared by reacting an 8-halotheophylline with an amine II wherein Y is X, X, R and n having the above significance or when X is -COR 2 , reacting a 8-halo-theophylline with the amine II and subsequently reacting the 8 - (N - hydroxyalkylamino)theophylline with an acid R 2 COOH or a reactive derivative thereof. Pharmaceutical compositions of the compounds I when administered orally, parenterally or rectally, with the usual excipients, show coronary dilatory, diuretic, spasmolytic, bronchodilatory, anti-inflammatory, antalgic and/or anti-tussive activity.
Patent GB-1180957-A (GB)
Title: Improvements in or relating to Immunological Reagents for Diagnostic Techniques.
Inventor: SHAW RODNEY ALLENBY
IPC: G01N33/533
Filed: 1967-12-13
Abstract: 1,180,957. Antibody composition. STIRLING-WINTHROP GROUP Ltd. 31 Dec., 1968 [13 Dec., 1967], No. 56551/67. Heading B1X. An antibody composition for use in detecting antigenic micro-organisms, such as bacteria, viruses, protozoa and fungi comprises a fluorescent labelled antibody mixed with a sufficient amount (defined) of a free dye i.e. a dye which is not chelated with a metal ion or coupled with protein and which when used in the test either stains the background a colour which contrasts with the fluorescence of the antibody-antigen complex formed in the test or which reduces the intensity of the background colour. The components may be mixed together in powder form or one or both may be in solution in buffered saline before mixing, and the resulting mixture freeze-dried. The fluorescent compound may be fluorescein isothiocyanate, fluorescein isocyanate, anthracene isothiocyanate, alizarin lake, 1-dimethylamino-naphthalene-5-sulphonic acid and its chloride, tetramethyl and tetraethyl rhodamine isothiocyanates, lissamine rhodamine RB200. The preferred dye is naphthalene black; others are listed. Examples relate to determination by an indirect method of E. coli, poliovirus type I, respiratory syncytial virus (R SV), para-influenza virus. The suspected antigenic material is treated with an anti-type unlabelled anti-body and the product is treated with the labelled antibody which is anti species for the first antibody.
Patent GB-1378894-A (GB)
Title: Ink compositions
IPC: C09D11/00
Filed: 1971-12-07
Abstract: 1378894 Aqueous inks. A B DICK CO 7 Dec 1971 [7 Dec 1970] 56848/71 Heading C4A An aqueous ink composition for jet printing comprises an infra-red absorbing colouring component which on application of the ink absorbs at least 50% of radiation within the range of 700-1100 nm., and at least one humectant comprising 5-30% by wt. of the composition and selected from C 2-6  alkylene or poly-C 2-6 - alkylene glycols, C 1-6  alkyl ether derivatives thereof, or any mixture thereof, the composition having a viscosity at 25‹ C. of 1-10 centipoises. The colouring component may be a nigrosine or a water-dispersed carbon black, and may contain a salt such as sodium chloride to enhance its conductivity. The humectant may be ethylene-, propylene-, butylene-, or hexylene glycol, or diethylene-, dipropylene-, triethylenetripropylene- or tetraethylene glycol. The average molecular weight of the above humectants should be below 600. The alkyl-ether derivatives of the above glycols may also be used, numerous examples being given. The alkyl ether derivatives may be used in a mixture with the glycols. A solubilizing agent such as N-methyl-2-pyrrolidone may be incorporated to insure that the dye remains in solution, and an anti-bacterial preservative such as 2,2-dimethyl-6-acetoxy-dioxane-1,3, may also be incorporated.
Patent GB-1285908-A (GB)
Title: Improvements in the production of sulphuric acid
Inventor: THOMAS GRIFFITH
IPC: C01B17/765
Filed: 1969-11-28
Abstract: 1285908 Sulphuric acid DORR-OLIVER Inc 28 Nov 1969 58347/69 Heading C1A In a process for the production of sulphuric acid in which sulphur dioxide-bearing gases produced by the combustion of sulphur-bearing material are cooled and purified and the purified gases then reheated before being passed to a converter in which the sulphur dioxide is converted to sulphur trioxide which is subsequently converted to sulphuric acid, the purified gases having a SO 2  content of up to 13% are reheated to a temperature of from 400‹ to 500‹ C. in a single stage by heat-exchange with the sulphur dioxide-bearing combustion gases with simultaneous cooling of the combustion gases to a temperature of from 200‹ to 400‹ C.
Patent GB-1206940-A (GB)
Title: Galvanometers
Inventor: GALL DOUGLAS CRISP
IPC: G01D7/00
Filed: 1966-12-30
Abstract: 1,206,940. Mounting light sources. H. TINSLEY & CO. Ltd. 1 Dec., 1967 [30 Dec., 1966], No. 58413/66. Heading F4R. [Also in Divisions G1 and G2] A mounting device for a galvonometer lamp comprises a lamp holder 42 on a bracket 52 which is screwed to a flat spring 43 supported by blocks 44. A lever 47 pivoted about a pin 48 has projections 50 which contact the side portions 51 of the bracket 52. Rotation of the lever about the pin 48 thus imparts a horizontal movement to the bracket and the spring, this movement being allowed by guide pins 46 in slots 45 of the spring. The centre of the lever 47 has a downwardly domed dimple which engages the upper surface of the spring 43 whilst a screw 53 passes through a slot 54 in the lever and screws into a base-plate (not shown). The head of the screw engages the lever so that adjustment of the screw deflects the lever, the dimple of which acts on the spring to raise or lower the lamp.
Patent GB-1354664-A (GB)
Title: Use of dioxazine pigments in the photoelectrophoretic production of images
IPC: G03G5/00
Filed: 1972-12-20
Abstract: 1354664 Photo-electrophoretic imaging composition CIBA-GEIGY AG 20 Dec 1972 [28 Dec 1971] 58793/72 Heading G2C A photo-electrophoretic imaging composition comprises a light-sensitive dioxazine pigment of formula wherein R is a C 1-4  alkyl group or an optionally substituted phenyl group, X is H, Cl or Br and Y is Cl or Br. The substituents on the phenyl group may be methyl or chloro groups. The pigment may be suspended in a saturated hydrocarbon liquid or beeswax together with a binder. Pigment particles of uniform size are preferred and may be formed by grinding the binder and pigment in the carrier liquid. Electron donors may be added as sensitizers. The composition is used for mono- or polychromatic imaging.
Patent GB-1409438-A (GB)
Title: Piperidine derivatives
IPC: C07D211/58
Filed: 1972-12-21
Abstract: 1409438 Piperidine derivatives JOHN WYETH & BRO Ltd 10 Dec 1973 [21 Dec 1972] 59141/72 Addition to 1345872 Heading C2C Novel compounds of Formula I in which A = C 1-6  alkylene, hydroxy-C 1-6  alkylene, mono- or di-keto C 1-6  alkylene, -OCH 2 CH(OH)CH 2 -or-O-(C 1-6  alkylene)-, and acid addition salts thereof, are prepared by reacting benzamido-piperidine or cyclohexanecarboxamido-piperidine with a compound of Formula III in which Y is a replaceable atom or group. 4 - Benzamido - 1 - [4 - (4 - tert - butyl - phenyl)- 4-oxobutyl]piperidine is prepared in the example. Pharmaceutical compositions having hypotensive activity for oral or parenteral administration, comprise one of the above novel compounds together with a pharmaceutical carrier.
Patent GB-1449812-A (GB)
Title: Interpolators
IPC: G05B19/4103
Filed: 1972-12-22
Abstract: 1449812 Interpolation; digital to analogue corivertion ELECTRONIC MUSIC STUDIOS (LONDON) Ltd 19 Dec 1973 [22 Dec 1972] 59541/72 Heading H3H Digital interpolation between a present value PFO and an aiming value -is carried out by adding or subtracting at 1 equal steps of size corresponding to the least significant bit at a frequency which is inversely proportional to the real time duration of the interpolation and proportional to the difference between the present value and the aiming value. The present value is updated after every step. In Fig. 2, new aiming value data LAL (which may be in absolute or incremental form) arrive from a computer (not shown). Subtractor 8 calculates the difference between PFO and the latest aiming value and this is stored and compared at 7 with a pseudo-random number sequence to give a sequence of pulses to controller 2 of frequency proportional to the difference. The controller 2 also receives pulses of frequency inversely proportional to the time interval between successive new aiming points, produced by comparing -at 9 a 3-bit code representing the logarithm to base 2-of the time interval with a sequentially repeated 3-bit number sequence produced by counting clock pulses and coding the number of the most significant bit in the counter output which has changed since the previous number in the sequence. When equality between PFO and the aiming value is reached as detected at 11, controller 2 is inhibited from producing further control pulses. The output 3 may control a bank of audio oscillators.
Patent GB-1361440-A (GB)
Title: Method and apparatus for concentration of solid-liquid slurry
IPC: B01D33/00
Filed: 1971-12-22
Abstract: 1361440 Moving band press filter S YAMAMOTO 22 Dec 1971 [28 Dec 1970 29 Dec 1970 6 Sept 1971 59564/71 Heading BID [Also in Division B5] Slurry is thickened by being fed into a tank 2', Fig. 4, in which are arranged a number of endless filter belts, e.g. 100, on rollers 60, 70 and engaged by squeezing rollers 90 to which, as the filter belts are driven, thickened slurry is transferred and from which it is removed by scrapers 92. Filtrate is drawn off through drain holes 40, 30, 31 at the bottoms of the spaces enclosed by the belts, and sealing of the lower edges of the belts may be effected by narrow edge belts (160), Fig. 5 (not shown). The filter belts may be engaged by further squeezing rollers 91 in which case separators 110 are arranged between the rollers 90 and 91. The filler belts may be of foamed plastics, non-woven cloth, felt or filter cloth stitched to flexible perforated sheet or cloth, and may be supported by intermediate bands (131), Fig. 5 (not shown), passing round the rollers 60, 70. and by inner perforated belts 130 on rollers 61, 71, in turn supported by rollers 120, plates t and intermediate bands (131'). Fig. 6 shows an apparatus F similar to that of Fig. 4 and a further apparatus P. Thickened slurry from the apparatus f is guided by a chute 27 onto a filter belt 23 passing round perforated drums 20, 22 and subjected to pressure by a pressure belt 26 passing round a pressure roller 21 and guide rollers 24, 25. A scraper 34 removes thickened slurry from the belt. A pump 42 returns filtrate via a filter device 43 to the apparatus F.
Patent GB-1376328-A (GB)
Title: Manufacture of clad metals
IPC: B21C37/04
Filed: 1971-12-23
Abstract: 1376328 Welding by pressure; jointing by rolling POLYMETALLURGICAL CORP 23 Dec 1971 [4 Jan 1971] 59892/71 Headings B3R and B3M A method of producing a clad rod having a round metal core and a dissimilar thin metal cladding comprises preforming a pair of continuously fed flat cladding strips 12, 14, into semi-circular shapes, removing contaminants from the surfaces of said strips and from the surface of a continuously fed round metal core rod 10, bringing the semicircular cladding strips and rod into contact so that the cladding strips form a sheath around the rod and solid-phase bonding the rod and sheath, to produce a clad rod which requires no further heat treatment or machining (e.g. to remove flash) and which is thereby suitable for subsequent drawing into wire. In a first embodiment in which an aluminium core rod is to be clads with copper, removal of the contaminants from the flat copper strips 12, 14 is preferably achieved by passing a current through the moving strips to heat them and burn off any contaminants. Removal of contaminants from the aluminium core rod 10 is effected by passing the rod through a rotary annular cutting head 42, Figure 5. Optionally the core rod 10 is scored longitudinally by a set of four scoring rolls 32 prior to the machining step so as to ensure that the swarf removed is in chip form. The outlet side of the cutting head opens directly into a retort 52 in which a reducing atmosphere at slightly positive pressure is maintained. The core rod 10 and strips 12, 14 pass to a first guide block 54 and a second guide block 56 before passing through the nip of rolls 62, 64. The electrical heating of the strips is sufficient to provide a temperature of about 500‹ F. of the sheathed rod on passage through the bonding roll stage. The finished clad rod has only a slight protuberance at the point at which the two cladding strips are bonded to each other, Figure 8A. In a second embodiment (Fig. 9, not shown) in which a steel rod is clad with copper, removal of the contaminants from the steel rod as well as from the copper strips is effected by electric resistance heating. In this case the clad rod emerges from the bonding rolls at a temperature liable to cause oxidation and is therefore passed through a cooling retort having a reducing atmosphere and through a water-bath before being coiled up for subsequent wire drawing. Removal of contaminants from either the core rod or cladding strips may alternatively be effected by chemical treatment, mechanical abrasion or die skiving. In addition to the copper clad aluminium and copper clad steel embodiments described reference is made to copper clad nickel-iron alloy; silver clad nickel; silver clad copper; nickel clad steel and Monel ((Registered Trade Mark) clad steel.